<template>
    <el-container class="home-container">
  <el-header>
      <div>
          <img src="../assets/heima.png" alt="">
          <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
  </el-header>
  <el-container>
    <el-aside :width="isCollapse ? '64px' : '200px'">
      <div class="toggle-button" @click="toggleCollapse">|||</div>
       <el-menu :default-active="activePath" :router="true" :collapse-transition="false" :collapse="isCollapse" :unique-opened="true" background-color="#333744" text-color="#fff">
           <!-- 一级菜单 -->
      <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
          <!-- 一级菜单的模板区域 -->
        <template slot="title">
            <!-- 图标 -->
          <i :class="iconsObj[item.id]"></i>
          <span>{{item.authName}}</span>
          <!-- 文本 -->
        </template>
        
        <el-menu-item  @click="saveNavState('/' + subItem.path)" :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id">
          <template slot="title">
            <!-- 图标 -->
          <i class="el-icon-menu"></i>
          <span>{{subItem.authName}}</span>
          <!-- 文本 -->
        </template>
        </el-menu-item>
      </el-submenu>
      
    </el-menu>
    </el-aside>
    <el-main>
      <router-view></router-view>
    </el-main>
  </el-container>
</el-container>
</template>
<script>
export default {
  data () {
    return {
      menulist: [],
      iconsObj: {
        '125': 'iconfont icon-users',
        '103': 'iconfont icon-tijikongjian',
        '101': 'iconfont icon-shangpin',
        '102': 'iconfont icon-danju',
        '145': 'iconfont icon-baobiao'
      },
      isCollapse: false,
      activePath: ''
    }
  },
  created() {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
    methods: {
        logout() {
            window.sessionStorage.clear()
            this.$router.push("/login")
        },
        async getMenuList(){
          const { data: res } = await this.$http.get('menus')
          if(res.meta.status !== 200) return this.$message.error(res.meta.msg);
          this.menulist = res.data
          
          console.log(res)
          },
          toggleCollapse () {
            this.isCollapse = !this.isCollapse
          },
          saveNavState(activePath) {
            window.sessionStorage.setItem('activePath', activePath)
            this.activePath = activePath
          }
    }
}
</script>
<style lang="less" scoped>
.home-container{
    height: 100%;
}
.el-header {
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: white;
    font-size: 20px;
    > div {
      display: flex;
      align-items: center;
      span {
          margin-left: 15px;
      }
    }
}
.el-aside {
    background-color: #333744;
    .el-menu {
      border-right: none;
    }
}
.el-main {
    background-color: #EAEDF1;
}
.iconfont {
  margin-right: 10px;
}
.toggle-button{
  background-color: #4A5064;
  font-size: 10px;
  line-height: 24px;
  text-align: center;
  color: white;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>